7957940818 has 8 divisors (see below), whose sum is σ = 11958115248. Its totient is φ = 3971902404.

The previous prime is 7957940801. The next prime is 7957940833. The reversal of 7957940818 is 8180497597.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3532596 + ... + 3534847.

It is an arithmetic number, because the mean of its divisors is an integer number (1494764406).

Almost surely, 2^7957940818 is an apocalyptic number.

7957940818 is a deficient number, since it is larger than the sum of its proper divisors (4000174430).

7957940818 is a wasteful number, since it uses less digits than its factorization.

7957940818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068008.

The product of its (nonzero) digits is 5080320, while the sum is 58.

The square root of 7957940818 is about 89207.2912827197. The cubic root of 7957940818 is about 1996.4889078898.

The spelling of 7957940818 in words is "seven billion, nine hundred fifty-seven million, nine hundred forty thousand, eight hundred eighteen".